:root{
  --p:#003d6b;--p-dark:#00284a;--p-mid:#004f8b;--p-soft:#1a5a96;
  --p-tint:#e6eef7;--p-tint2:#ccdcee;
  --gold:#b8860b;--gold-lt:#d4a017;--gold-pl:#fdf6e3;
  --white:#ffffff;--off:#f5f7fa;--off2:#edf1f6;
  --text:#1a2535;--mid:#3a4f63;--muted:#56687a;
  --border:#d8e2ec;--bdr-dk:#b8c8d8;
  --r:6px;--r2:10px;
  --sh-xs:0 1px 3px rgba(0,40,74,.06);
  --sh-sm:0 2px 8px rgba(0,40,74,.08);
  --sh-md:0 4px 20px rgba(0,40,74,.11);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:108px;}
@media(max-width:768px){html{scroll-padding-top:70px;}}
@media(max-width:480px){html{scroll-padding-top:60px;}}
body{font-family:'Lato',sans-serif;font-size:1rem;line-height:1.7;color:var(--text);background:var(--white);overflow-x:hidden;-webkit-font-smoothing:antialiased;padding-top:108px;}
img{display:block;max-width:100%;}
a{color:var(--p);text-decoration:none;}
a:hover{color:var(--gold);}

/* ── TOP BAR ── */
.topbar{background:#00284a!important;height:38px!important;display:flex!important;align-items:center!important;justify-content:space-between!important;padding:0 1.5rem!important;border-bottom:1px solid rgba(255,255,255,.06)!important;position:fixed!important;top:0!important;left:0!important;right:0!important;z-index:1100!important;}
.topbar-left{font-family:'Source Code Pro',monospace!important;font-size:.68rem!important;color:#d4a017!important;letter-spacing:.06em!important;text-transform:uppercase!important;}
.topbar-right{display:flex!important;align-items:center!important;gap:1.6rem!important;}
.topbar-link{display:flex!important;align-items:center!important;gap:.4rem!important;font-family:'Source Code Pro',monospace!important;font-size:.7rem!important;color:rgba(255,255,255,.6)!important;letter-spacing:.03em!important;text-decoration:none!important;transition:color .2s!important;}
.topbar-link:hover{color:#d4a017!important;}
.topbar-link svg{width:12px!important;height:12px!important;fill:currentColor!important;flex-shrink:0!important;}
.tb-sep{width:1px!important;height:14px!important;background:rgba(255,255,255,.15)!important;}

/* ── NAV ── */
nav{position:fixed;top:38px;left:0;right:0;z-index:1000;height:70px;background:var(--white);display:flex;align-items:center;justify-content:space-between;padding:0 3rem;border-bottom:3px solid var(--gold);box-shadow:var(--sh-sm);transition:box-shadow .3s;}
nav.scrolled{box-shadow:var(--sh-md)}
.nav-brand{display:flex;align-items:center;gap:.9rem}
.nav-mark{width:50px;height:50px;background:var(--white);border-radius:var(--r);display:flex;align-items:center;justify-content:center;border:1.5px solid rgba(184,134,11,.3);flex-shrink:0;overflow:hidden;padding:3px;}
.nav-mark img{width:100%;height:100%;object-fit:contain;display:block}
.nav-text{display:flex;flex-direction:column;gap:1px}
.nav-name{font-family:'Merriweather',serif;font-size:1.08rem;font-weight:700;color:#d4a017;line-height:1;letter-spacing:-.015em;}
.nav-sub{font-family:'Source Code Pro',monospace;font-size:.58rem;color:var(--muted);letter-spacing:.12em;text-transform:uppercase;}
.nav-links{display:flex;list-style:none;align-items:center}
.nav-links li a{font-size:.86rem;font-weight:700;color:var(--mid);padding:.42rem .82rem;border-radius:var(--r);transition:color .2s,background .2s;letter-spacing:.01em;display:block;}
.nav-links li a:hover{color:var(--p);background:var(--p-tint)}
.nav-links .cta a{background:var(--p);color:var(--white)!important;margin-left:.4rem;padding:.46rem 1.2rem!important;border-radius:var(--r);}
.nav-links .cta a:hover{background:var(--p-soft)!important;box-shadow:0 4px 14px rgba(0,61,107,.3)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:6px;background:none;border:none}
.hamburger span{display:block;width:22px;height:2px;background:var(--p);border-radius:2px;transition:all .3s}
.mob-menu{display:none;position:fixed;top:108px;left:0;right:0;background:var(--white);border-top:3px solid var(--gold);border-bottom:1px solid var(--border);padding:.75rem 1.5rem;z-index:999;flex-direction:column;box-shadow:var(--sh-md);height:auto !important;max-height:calc(100vh - 70px);overflow-y:auto;align-items:stretch !important;justify-content:flex-start !important;}
.mob-menu.open{display:flex}
.mob-menu a{font-size:.9rem;font-weight:700;color:var(--mid);padding:.68rem .5rem;border-bottom:1px solid var(--border);transition:color .2s;}
.mob-menu a:last-child{border:none;color:var(--p);font-weight:900}
.mob-menu a:hover{color:var(--p)}

/* ── FOOTER ── */
footer{background:#010f1c;border-top:1px solid rgba(184,134,11,.18);padding:3.5rem 3rem 2rem;}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:3rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.06);}
.footer-brand-col{}
.footer-logo-row{display:flex;align-items:center;gap:.8rem;margin-bottom:.9rem}
.footer-mark{width:44px;height:44px;background:var(--white);border-radius:var(--r);display:flex;align-items:center;justify-content:center;border:1.5px solid rgba(184,134,11,.25);flex-shrink:0;overflow:hidden;padding:3px;}
.footer-mark img{width:100%;height:100%;object-fit:contain;display:block}
.footer-brand-name{font-family:'Merriweather',serif;font-size:1.15rem;font-weight:900;color:var(--white)}
.footer-brand-name span{color:var(--gold)}
.footer-tagline{font-size:.87rem;font-weight:300;color:rgba(255,255,255,.38);line-height:1.7;margin-bottom:1.4rem;max-width:280px;}
.footer-contact-row{display:flex;flex-direction:column;gap:.5rem}
.footer-contact-item{display:flex;align-items:center;gap:.5rem;font-size:.83rem;color:rgba(255,255,255,.45);transition:color .2s;}
.footer-contact-item:hover{color:var(--gold-lt)}
.footer-contact-item svg{width:13px;height:13px;fill:currentColor;flex-shrink:0}
.footer-col-title{font-family:'Lato',sans-serif;font-size:.7rem;font-weight:900;color:rgba(255,255,255,.55);letter-spacing:.12em;text-transform:uppercase;margin-bottom:1.1rem;padding-bottom:.5rem;border-bottom:1px solid rgba(184,134,11,.18);}
.footer-links{display:flex;flex-direction:column;gap:.55rem}
.footer-links a{font-size:.85rem;color:rgba(255,255,255,.4);transition:color .2s;font-weight:400}
.footer-links a:hover{color:var(--gold-lt)}
.footer-bottom{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding-top:1.5rem;flex-wrap:wrap;gap:1rem;}
.footer-copy{font-family:'Source Code Pro',monospace;font-size:.67rem;color:rgba(255,255,255,.2)}
.footer-social{display:flex;gap:.6rem}
.footer-social a{width:32px;height:32px;border:1px solid rgba(255,255,255,.1);border-radius:var(--r);display:grid;place-items:center;color:rgba(255,255,255,.35);font-family:'Source Code Pro',monospace;font-size:.65rem;font-weight:600;transition:all .2s;}
.footer-social a:hover{border-color:var(--gold);color:var(--gold-lt);background:rgba(184,134,11,.08)}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  nav{padding:0 1.3rem}
  .nav-links{display:none}
  .hamburger{display:flex}
  .topbar{display:none!important}
  body{padding-top:70px}
  footer{padding:2.5rem 1.4rem 1.5rem}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center}
  .article-layout{padding:2rem 1.2rem 4rem}
  .article-hero{padding:2rem 1.2rem 1.75rem}
}
@media(max-width:480px){
  nav{height:60px}
  .mob-menu{top:60px}
  body{padding-top:60px}
}

.article-hero{
  background:linear-gradient(135deg,var(--p-dark) 0%,var(--p) 100%);
  padding:4rem 2rem 3rem;position:relative;overflow:hidden;
}
.article-hero::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:28px 28px;pointer-events:none;
}
.hero-inner{max-width:860px;margin:0 auto;position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:0.5rem;font-size:0.78rem;color:rgba(255,255,255,0.5);margin-bottom:1.4rem;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,0.5);}
.breadcrumb a:hover{color:var(--gold);}
.breadcrumb span{color:rgba(255,255,255,0.2);}
.art-badge{display:inline-block;background:rgba(184,134,11,0.15);border:1px solid rgba(184,134,11,0.35);color:var(--gold-lt);font-size:0.68rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;padding:4px 12px;border-radius:3px;margin-bottom:1.2rem;}
.art-title{font-family:'Merriweather',serif;font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:900;color:var(--white);line-height:1.22;margin-bottom:1.2rem;}
.art-meta{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap;font-size:0.8rem;color:rgba(255,255,255,0.5);border-top:1px solid rgba(255,255,255,0.1);padding-top:1rem;margin-top:1rem;}
.art-meta strong{color:rgba(255,255,255,0.8);}
.art-meta .dot{color:rgba(255,255,255,0.2);}

.article-layout{max-width:860px;margin:0 auto;padding:3rem 2rem 5rem;}
.art-content{font-size:1rem;line-height:1.85;color:var(--mid);}
.art-content h2{font-family:'Merriweather',serif;font-size:1.35rem;font-weight:700;color:var(--p);margin:2.5rem 0 1rem;padding-bottom:0.5rem;border-bottom:2px solid var(--gold);display:inline-block;}
.art-content h3{font-family:'Merriweather',serif;font-size:1.05rem;font-weight:700;color:var(--text);margin:1.8rem 0 0.6rem;}
.art-content p{margin-bottom:1.1rem;}
.art-content ul,.art-content ol{margin:0 0 1.1rem 1.4rem;}
.art-content ul li,.art-content ol li{margin-bottom:0.45rem;}
.art-content strong{color:var(--text);font-weight:700;}

.info-box{border-left:4px solid var(--p);background:var(--p-tint);border-radius:0 var(--r) var(--r) 0;padding:1.1rem 1.4rem;margin:1.5rem 0;}
.info-box.gold{background:var(--gold-pl);border-left-color:var(--gold);}
.info-box.warning{background:#fff8e1;border-left-color:#f9a825;}
.info-box p{margin:0;font-size:0.92rem;}
.info-box strong{display:block;margin-bottom:3px;font-size:0.8rem;letter-spacing:0.06em;text-transform:uppercase;}

.tbl-wrap{overflow-x:auto;margin:1.5rem 0;border-radius:var(--r2);border:1px solid var(--border);}
.art-table{width:100%;border-collapse:collapse;font-size:0.88rem;}
.art-table th{background:var(--p);color:var(--white);padding:10px 14px;text-align:left;font-weight:700;font-size:0.8rem;letter-spacing:0.04em;}
.art-table td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--mid);vertical-align:top;}
.art-table tr:last-child td{border-bottom:none;}
.art-table tr:nth-child(even) td{background:var(--off);}

.key-points{background:var(--off);border:1px solid var(--border);border-radius:var(--r2);padding:1.4rem 1.6rem;margin:2rem 0;}
.kp-title{font-family:'Merriweather',serif;font-size:0.92rem;font-weight:700;color:var(--p);margin-bottom:0.9rem;}
.key-points ul{margin:0;padding:0;list-style:none;}
.key-points ul li{padding:0.45rem 0 0.45rem 1.4rem;position:relative;font-size:0.9rem;border-bottom:1px solid var(--border);color:var(--mid);}
.key-points ul li:last-child{border-bottom:none;}
.key-points ul li::before{content:'checkmark';content:'✓';position:absolute;left:0;color:var(--gold);font-weight:700;}

.steps-box{margin:1.5rem 0;}
.step-item{display:flex;gap:1rem;margin-bottom:1.2rem;align-items:flex-start;}
.step-num{min-width:32px;height:32px;border-radius:50%;background:var(--p);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:0.82rem;font-weight:700;flex-shrink:0;margin-top:2px;}
.step-text{font-size:0.95rem;color:var(--mid);line-height:1.7;}
.step-text strong{color:var(--text);}

.faq-section{margin-top:3rem;}
.faq-section h2{font-family:'Merriweather',serif;font-size:1.35rem;font-weight:700;color:var(--p);margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--gold);display:inline-block;}
.faq-item{border:1px solid var(--border);border-radius:var(--r2);margin-bottom:0.7rem;overflow:hidden;}
.faq-q{width:100%;text-align:left;background:var(--white);border:none;cursor:pointer;padding:1rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-family:'Lato',sans-serif;font-size:0.95rem;font-weight:700;color:var(--text);transition:background 0.2s;}
.faq-q:hover{background:var(--off);}
.faq-icon{font-size:1.3rem;color:var(--gold);flex-shrink:0;transition:transform 0.3s;font-weight:300;line-height:1;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease;font-size:0.92rem;color:var(--mid);line-height:1.7;padding:0 1.25rem;background:var(--off);}
.faq-item.open .faq-a{max-height:600px;padding:1rem 1.25rem 1.2rem;}

.author-box{display:flex;align-items:center;gap:1.1rem;background:var(--off);border:1px solid var(--border);border-radius:var(--r2);padding:1.2rem 1.4rem;margin:2.5rem 0 2rem;}
.author-logo{width:60px;height:60px;object-fit:contain;display:block;flex-shrink:0;}
.author-name{font-weight:700;color:var(--text);font-size:0.92rem;}
.author-title{font-size:0.76rem;color:var(--muted);margin-top:2px;}

.art-cta{background:linear-gradient(135deg,var(--p-dark),var(--p));border-radius:var(--r2);padding:2rem 2.2rem;margin:2.5rem 0;text-align:center;}
.art-cta h3{font-family:'Merriweather',serif;font-size:1.15rem;color:var(--white);margin-bottom:0.5rem;}
.art-cta p{font-size:0.86rem;color:rgba(255,255,255,0.62);margin-bottom:1.1rem;}
.art-cta a{display:inline-block;background:var(--gold);color:var(--p-dark);font-weight:900;font-size:0.88rem;padding:0.72rem 1.8rem;border-radius:var(--r);letter-spacing:0.04em;transition:background 0.2s;}
.art-cta a:hover{background:var(--gold-lt);}

.wa-float{position:fixed;bottom:28px;right:28px;z-index:9999;display:flex;align-items:center;gap:0;cursor:pointer;text-decoration:none;}
.wa-float__label{background:#25d366;color:#fff;font-family:'Lato',sans-serif;font-size:0.82rem;font-weight:700;letter-spacing:0.03em;padding:0.45rem 0.9rem 0.45rem 1.1rem;border-radius:24px 0 0 24px;white-space:nowrap;max-width:0;overflow:hidden;opacity:0;transition:max-width 0.35s ease,opacity 0.25s ease;box-shadow:-2px 4px 14px rgba(0,0,0,.15);}
.wa-float:hover .wa-float__label{max-width:220px;opacity:1;}
.wa-float__icon{width:58px;height:58px;background:#25d366;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 20px rgba(37,211,102,.45),0 2px 8px rgba(0,0,0,.15);transition:transform 0.25s ease,box-shadow 0.25s ease;position:relative;}
.wa-float__icon svg{width:30px;height:30px;}
.wa-float:hover .wa-float__icon{transform:scale(1.1) rotate(-5deg);box-shadow:0 6px 28px rgba(37,211,102,.6),0 3px 12px rgba(0,0,0,.2);}
.wa-float__icon::after{content:'';position:absolute;width:58px;height:58px;border-radius:50%;background:rgba(37,211,102,.35);animation:waPulse 2.2s ease-out infinite;}
@keyframes waPulse{0%{transform:scale(1);opacity:.7;}70%{transform:scale(1.7);opacity:0;}100%{transform:scale(1.7);opacity:0;}}

@media(max-width:768px){
  .article-hero{padding:3rem 1.2rem 2rem;}
  .article-layout{padding:2rem 1.2rem 4rem;}
  .art-cta{padding:1.5rem 1.2rem;}
  .author-box{flex-direction:column;text-align:center;}
  .wa-float{bottom:20px;right:18px;}
  .wa-float__icon{width:52px;height:52px;}
  .wa-float__icon svg{width:26px;height:26px;}
  .wa-float__icon::after{width:52px;height:52px;}
  .wa-float__label{display:none;}
}